While at The Henry Ford museum to see the LEGO Architecture exhibit, I also walked around looking for technology of the past. This gallery contains photos of a large portion of the museum's collection, but there is even more for the Detroit native or visitor to see.
One of the biggest things (pun intended) people come to see is the 1941 Allegheny Locomotive. Normally used for freight hauling, this class of locomotive was also pressed into service to haul troops during World War II. This locomotive (including tender) weighed 603.5 tons and could reach a maximum speed of 60 mph. Climb on board to take a look at the controls!
Photo by Wally Bahny for TechRepublic